User login


Search Results


Showing results (1 to 2 of 2)

  • Thumbnail
    Twin Cities Public Television
    Add to list Details
    In this activity, learners construct a small "air cannon," and use its airflow to put out a candle (lit with the help of an adult). The "air cannon" is an empty salt carton with...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
  • Thumbnail
    National Optical Astronomy Observatory
    Add to list Details
    In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database. This popular program has generated 100,000...

    free Ages 4 - adult 10 to 30 minutes

Current filters